SparkFun will be closed for Memorial Day (5/30). Orders placed after 2pm MT on Friday (5/27) will process and ship out on Tuesday (5/31).


Member Since: November 6, 2009

Country: Australia

  • Supernova? I think not :-) : https://what-if.xkcd.com/73/
    Which of the following would be brighter, in terms of the amount of energy delivered to your retina:
    * A supernova, seen from as far away as the Sun is from the Earth, or
    * The detonation of a hydrogen bomb pressed against your eyeball?
    Applying the physicist rule of thumb suggests that the supernova is brighter. And indeed, it is … by nine orders of magnitude.
    Need I say more?
    Oh, and thanks for the shiny quarter.

  • Ah, ok. Why then “All you need to do is construct the enclosure around the synthesizer PCB (or don’t)” ??

  • So, there’s no enclosure around the PCB, right? I guess that makes the product photo a bit misleading…

  • Does anyone know what value the brown out detection bits have on this. I just noticed my (2009 vintage) kit didnt work anymore. I was using NiMH batteries - voltage about 2.7. I hooked up my ISP and lo and behold, the thing started. Disconnected, and it kept running sometimes, sometimes not. The BOD bits were set to 010 - 2.8v if I’m not mistaken. That could well be the issue. I tried writing them to disable BOD but accidently borked the firmware - i might have screwed up the lock bit. Anyways, I’d be interested in other’s reading of thr BOD value and whether or not it works with rechargable AA’s.

  • Little warning that the hole right below (‘below’ as in the 2nd picture) the mounting hole is connected to the three holes under it.

  • Actually, he B+ uses the Microchip LAN9514 which has 4 USB ports while the B has the LAN9512. They exactly the same apart from the number of USB ports thought as far as I can see.

  • I’ll wait for the Raspberry Pi Master, or maybe even the Archimedes. I’ll skip the Electron thought, unless they go on special at Aldi.

  • No, exactly the same chipset.

  • Will there be a 240v version of this kit? It seems only the movs and relay needs to be changed?

  • You’re all confusing ‘per hour’ with ‘for an hour’:
    - per hour is /hour (as in 500mA /hour - which doesn’t really make sense).
    - ‘for an hour’ is * hour, or in short ‘hour’ (confusing, yes I know) as in mAh, which means ‘so many milliamps for an hour’.
    - 500mAh per hour is indeed just 500mA and doesn’t mean much. I guess it meant to be ‘drawing 500mA from a 500mAh battery for an hour’.

No public wish lists :(